have you used this type of lens?

[tirediron]

With an f8, at that focal length, I wouldn't use it for trying to capture moving wildlife. . .stills only. It looks like a case of you will get what you pay for.

Only wild life this will be able to catch is chicks at the beach.

Yeah... and?

 

[480sparky]

Here's the best I've been able to get from my 80's-era Tokina 500/8:

And before you ask, yes, this is hand-held!

 

[Patrice]

Sparky,

That image was taken with a catadioptric lens (mirror lens) was it not? I think the OP was asking about a long focal length fixed aperture simple refractor lens.